:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--secondary-color:#1e293b;--background-color:#f8fafc;--card-background:#ffffff;--text-primary:#0f172a;--text-secondary:#64748b;--border-color:#e2e8f0;--success-color:#16a34a;--font-family:'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--border-radius:12px;--nav-height:60px;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--background-color);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;padding-bottom:calc(var(--nav-height) + 20px)}.site-header{background-color:var(--card-background);box-shadow:0 1px 3px rgb(0 0 0 / .05);padding:var(--spacing-md) 0;position:sticky;top:0;z-index:999}.container{max-width:100%;margin:0 auto;padding:0 var(--spacing-md)}.header-inner{display:flex;justify-content:space-between;align-items:center}.site-title{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.site-main{padding:var(--spacing-xl) 0;min-height:calc(100vh - 150px)}h1,h2,h3,h4,h5,h6{color:var(--secondary-color);margin-bottom:var(--spacing-md);font-weight:600}.form-group{margin-bottom:var(--spacing-md)}.form-group label{display:block;margin-bottom:var(--spacing-sm);font-weight:500;color:var(--secondary-color)}.form-group input,.form-group select{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;font-family:inherit;transition:border-color 0.2s,box-shadow 0.2s;background-color:#f9fafb}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(37 99 235 / .1);background-color:#fff}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;border-radius:var(--border-radius);border:none;cursor:pointer;transition:background-color 0.2s,transform 0.1s;text-decoration:none;width:100%}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background-color:var(--card-background);box-shadow:0 -2px 10px rgb(0 0 0 / .05);display:flex;justify-content:space-around;align-items:center;height:var(--nav-height);z-index:100}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:var(--text-secondary);font-size:.75rem;font-weight:500;transition:color 0.2s;flex:1;height:100%}.bottom-nav-item svg{width:24px;height:24px;margin-bottom:2px;stroke:currentColor;fill:none}.bottom-nav-item.active,.bottom-nav-item:hover{color:var(--primary-color)}.card{background-color:var(--card-background);border-radius:var(--border-radius);padding:var(--spacing-lg);box-shadow:0 4px 6px -1px rgb(0 0 0 / .1),0 2px 4px -1px rgb(0 0 0 / .06);margin-bottom:var(--spacing-lg)}@media (min-width:768px){.bottom-nav{display:none}body{padding-bottom:0}}.desktop-nav{display:none}@media (min-width:992px){.desktop-nav{display:block}.mobile-menu-toggle{display:none}}.nav-menu{list-style:none;display:flex;align-items:center;gap:2rem;margin:0;padding:0}.nav-menu>li>a{color:var(--text-primary);text-decoration:none;font-weight:600;font-size:1rem;display:flex;align-items:center;gap:.5rem;padding:.5rem 0;transition:color 0.3s}.nav-menu>li>a:hover{color:var(--primary-color)}.has-megamenu{position:static}.megamenu{position:absolute;top:100%;left:0;width:100%;background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);box-shadow:0 10px 25px -5px rgb(0 0 0 / .1);opacity:0;visibility:hidden;transform:translateY(10px);transition:all 0.3s cubic-bezier(.4,0,.2,1);z-index:100;padding:2rem 0}.has-megamenu:hover .megamenu{opacity:1;visibility:visible;transform:translateY(0)}.megamenu-inner{max-width:100%;margin:0 auto;padding:0 var(--spacing-md);display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.megamenu-item{color:var(--text-secondary);text-decoration:none;padding:.5rem;border-radius:8px;transition:all 0.2s;font-size:.9rem;font-weight:500}.megamenu-item:hover{background:#eff6ff;color:var(--primary-color);transform:translateX(5px)}.mobile-menu-toggle{background:none;border:none;color:var(--text-primary);cursor:pointer;padding:.5rem}.mobile-nav{display:none;position:fixed;top:var(--nav-height);left:0;width:100%;height:calc(100vh - var(--nav-height));background:var(--card-background);z-index:99;overflow-y:auto;padding:1rem var(--spacing-md)}.mobile-nav.active{display:block}.mobile-nav-menu{list-style:none;padding:0;margin:0}.mobile-nav-menu>li{border-bottom:1px solid var(--border-color)}.mobile-nav-menu>li>a{display:block;padding:1rem 0;color:var(--text-primary);text-decoration:none;font-weight:600;font-size:1.1rem}.mobile-submenu{display:none;list-style:none;padding-left:1rem;margin-bottom:1rem}.mobile-submenu.active{display:block}.mobile-submenu li a{display:block;padding:.75rem 0;color:var(--text-secondary);text-decoration:none;font-size:.95rem}}}.glass-card-link,.calcpro-card{text-decoration:none;color:inherit;display:block;height:100%}.glass-card,.calcpro-card{background:rgb(255 255 255 / .8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgb(255 255 255 / .4);box-shadow:0 8px 32px 0 rgb(31 38 135 / .07);border-radius:var(--border-radius);padding:var(--spacing-xl);transition:all 0.3s cubic-bezier(.25,.8,.25,1);height:100%;display:flex;flex-direction:column;align-items:flex-start}.glass-card-link:hover .glass-card,.calcpro-card:hover{transform:translateY(-5px);box-shadow:0 12px 40px 0 rgb(31 38 135 / .12);border-color:var(--primary-color)}.icon-wrapper,.calcpro-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-md);font-size:1.5rem;font-weight:700}.icon-wrapper svg,.calcpro-icon svg{width:32px;height:32px}.glass-card h3,.calcpro-card h3{margin-bottom:var(--spacing-sm);color:var(--text-primary);font-size:1.25rem;font-weight:700}.glass-card p,.calcpro-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.5;margin:0}.calculator-page-layout{max-width:100%;margin:2rem auto;padding:0 1rem}.calculator-page-main{width:100%}.top-scroll-menu-wrapper{position:sticky;top:var(--nav-height,70px);z-index:50;background:rgb(255 255 255 / .95);backdrop-filter:blur(8px);margin:0 -1rem 1rem -1rem;padding:1rem;border-bottom:1px solid #e2e8f0;box-shadow:0 4px 6px -1px rgb(0 0 0 / .05)}.top-scroll-menu{display:flex;gap:.75rem;overflow-x:auto;padding-bottom:.5rem;scrollbar-width:none;-ms-overflow-style:none;align-items:center}.top-scroll-menu::-webkit-scrollbar{display:none}.scroll-menu-item{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:50px;color:#0f172a;text-decoration:none;font-weight:600;font-size:.9rem;white-space:nowrap;transition:all 0.2s ease}.scroll-menu-item:hover,.scroll-menu-item.active{background:#ecfccb;border-color:#84cc16;color:#4d7c0f;box-shadow:0 4px 6px -1px rgb(132 204 22 / .2)}.scroll-icon{display:flex;align-items:center}.scroll-icon svg{width:18px;height:18px}.top-scroll-menu-wrapper{position:sticky;top:calc(var(--nav-height, 70px) + 20px);z-index:10;background:rgb(255 255 255 / .95);backdrop-filter:blur(8px);margin:0 auto 1.5rem auto;max-width:100%;border-radius:12px;padding:.75rem;border:1px solid #e2e8f0;box-shadow:0 4px 6px -1px rgb(0 0 0 / .05)}.top-scroll-menu{display:flex;gap:.75rem;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;align-items:center}.top-scroll-menu::-webkit-scrollbar{display:none}.scroll-menu-item{display:flex;align-items:center;gap:.5rem;padding:.5rem 1.25rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:50px;color:#0f172a;text-decoration:none;font-weight:600;font-size:.9rem;white-space:nowrap;transition:all 0.2s ease}.scroll-menu-item:hover,.scroll-menu-item.active{background:#ecfccb;border-color:#84cc16;color:#4d7c0f;box-shadow:0 4px 6px -1px rgb(132 204 22 / .2)}.scroll-icon{display:flex;align-items:center}.scroll-icon svg{width:18px;height:18px}@media (min-width:992px){.top-scroll-menu-wrapper{display:none!important}}.site-header{background:rgb(255 255 255 / .95)!important;backdrop-filter:blur(16px)!important;-webkit-backdrop-filter:blur(16px)!important;border-bottom:1px solid rgb(0 0 0 / .05);box-shadow:0 4px 30px rgb(0 0 0 / .03)!important;transition:all 0.3s ease}.site-title{font-size:1.6rem!important;background:linear-gradient(135deg,var(--primary-color),#7e22ce);-webkit-background-clip:text;-webkit-text-fill-color:#fff0;letter-spacing:-.5px}.nav-menu>li>a{font-size:1.05rem!important;padding:.6rem 1rem!important;border-radius:8px;transition:all 0.2s ease!important}.nav-menu>li>a:hover{background:rgb(37 99 235 / .05);color:var(--primary-color)!important}@media (max-width:991px){.desktop-nav{display:none!important}}@media (max-width:991px){.mobile-nav{position:fixed!important;top:0!important;right:-100%!important;width:300px!important;max-width:85vw!important;height:100vh!important;background:#ffffff!important;z-index:1000!important;box-shadow:-10px 0 30px rgb(0 0 0 / .1)!important;transition:right 0.4s cubic-bezier(.77,0,.175,1)!important;display:flex!important;flex-direction:column!important;padding:80px 20px 20px!important;overflow-y:auto!important;box-sizing:border-box!important;left:auto!important}.mobile-nav.active{right:0!important}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgb(0 0 0 / .4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:999;opacity:0;visibility:hidden;transition:all 0.3s ease}.mobile-menu-overlay.active{opacity:1;visibility:visible}.mobile-nav-menu{display:flex;flex-direction:column}.mobile-nav-menu>li{border-bottom:1px solid rgb(0 0 0 / .05)!important}.mobile-nav-menu>li>a{font-size:1.25rem!important;padding:1.2rem 0!important;font-weight:700!important;color:var(--secondary-color)!important}.mobile-nav-menu>li>a:hover{color:var(--primary-color)!important;padding-left:10px!important;transition:all 0.2s ease}.mobile-submenu-toggle{display:flex;justify-content:space-between;align-items:center}.mobile-menu-toggle{z-index:1001!important;position:relative!important;background:transparent!important;border:none!important;color:var(--secondary-color)!important;padding:0.5rem!important;display:block!important}.mobile-menu-toggle.active svg line:nth-child(1){transform:translateY(6px) rotate(45deg);transform-origin:center}.mobile-menu-toggle.active svg line:nth-child(2){opacity:0}.mobile-menu-toggle.active svg line:nth-child(3){transform:translateY(-6px) rotate(-45deg);transform-origin:center}.mobile-menu-toggle svg line{transition:all 0.3s ease}}@media (min-width:992px){.mobile-nav{display:none!important}.mobile-menu-toggle{display:none!important}.mobile-menu-overlay{display:none!important}}@media (max-width:767px){.container{padding:0 8px!important}.stage-card{padding:12px 8px!important;margin-bottom:12px!important;border-radius:8px!important}.form-group input,.form-group select{padding:0.6rem!important;font-size:1.1rem!important}.result-value{font-size:1.1rem!important;font-weight:700}.boq-table th,.boq-table td{padding:.4rem 0.2rem!important;font-size:0.9rem!important}body{font-size:16px!important}}@media (max-width:991px){.bottom-nav{display:flex;align-items:center;justify-content:center;padding:0 1rem;background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 -4px 20px rgb(0 0 0 / .05);border-top:1px solid rgb(0 0 0 / .05)}.bottom-nav-item.mobile-menu-toggle{display:flex!important;align-items:center;justify-content:center;gap:0.75rem!important;background:linear-gradient(135deg,var(--primary-color),#7e22ce)!important;color:white!important;padding:.75rem 2rem!important;border-radius:50px!important;font-weight:600!important;font-size:1.1rem!important;box-shadow:0 4px 15px rgb(37 99 235 / .3);margin:.5rem 0;transition:transform 0.2s}.bottom-nav-item.mobile-menu-toggle svg{stroke:white!important}.bottom-nav-item.mobile-menu-toggle:active{transform:scale(.96)}}.desktop-sidebar{display:none}@media (min-width:992px){.calculator-page-layout{display:grid;grid-template-columns:1fr 260px;gap:2rem;align-items:start;max-width:1400px;margin:2rem auto;padding:0 2rem}.desktop-sidebar{display:block!important;position:sticky;top:100px;background:rgb(255 255 255 / .7);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgb(255 255 255 / .5);box-shadow:0 4px 15px rgb(0 0 0 / .05);border-radius:var(--border-radius);width:100%!important;height:auto!important}}@media (max-width:768px){.calculator-page-layout{width:95%!important;max-width:95%!important;margin:1rem auto!important;padding:0!important}.calc-grid{gap:1rem}.calc-input-section,.calc-results-section{padding:1rem!important}.bottom-nav{display:flex!important;justify-content:space-around!important;align-items:stretch!important;padding:0!important;height:65px;background:rgb(255 255 255 / .95)!important;backdrop-filter:blur(10px)!important;-webkit-backdrop-filter:blur(10px)!important;box-shadow:0 -2px 10px rgb(0 0 0 / .05)!important}.bottom-nav-item{display:flex!important;flex-direction:column!important;justify-content:center!important;align-items:center!important;flex:1 1 0!important;gap:4px!important;padding:0!important;color:var(--text-secondary)!important;text-decoration:none!important;background:transparent!important;border-radius:0!important;margin:0!important;box-shadow:none!important}.bottom-nav-item svg{width:22px!important;height:22px!important;stroke:currentColor!important}.bottom-nav-item span{font-size:0.65rem!important;font-weight:500!important;white-space:nowrap!important}.bottom-nav-item:active,.bottom-nav-item.active{color:var(--primary-color)!important;transform:none!important}.bottom-nav-item.active svg{stroke:var(--primary-color)!important}}@media (min-width:992px){.desktop-sidebar-inner{padding:1.5rem}.sidebar-title{font-size:1.1rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:2px solid rgba(var(--primary-color-rgb),.1);color:var(--text-main);position:relative}.sidebar-title::after{content:'';position:absolute;left:0;bottom:-2px;height:2px;width:40px;background:var(--primary-color);border-radius:2px}.sidebar-menu{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.sidebar-menu li{margin:0;padding:0}.sidebar-menu li a{display:flex;align-items:center;padding:.8rem 1rem;color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.95rem;border-radius:8px;transition:all 0.3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;background:#fff0;border:1px solid #fff0}.sidebar-menu li a::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);width:3px;height:60%;background:var(--primary-color);border-radius:0 4px 4px 0;transition:transform 0.3s ease}.sidebar-menu li a:hover,.sidebar-menu li a.active{color:var(--primary-color);background:rgb(139 92 246 / .05);border:1px solid rgb(139 92 246 / .1);transform:translateX(4px);box-shadow:0 2px 8px rgb(139 92 246 / .05)}.sidebar-menu li a:hover::before,.sidebar-menu li a.active::before{transform:translateY(-50%) scaleY(1)}}@media (max-width:768px){.boq-table thead{display:none}.boq-table,.boq-table tbody,.boq-table tr,.boq-table td{display:block;width:100%}.boq-table tr{margin-bottom:1.5rem;background:rgb(255 255 255 / .8);border:1px solid rgb(0 0 0 / .1);border-radius:12px;padding:.5rem;box-shadow:0 4px 6px rgb(0 0 0 / .05)}.boq-table td{display:flex;justify-content:space-between;align-items:center;padding:.75rem .5rem;border-bottom:1px solid rgb(0 0 0 / .05);text-align:right}.boq-table td:last-child{border-bottom:none}.boq-table td.hide-mobile{display:none!important}.boq-table td::before{content:attr(data-cat) " - " attr(data-label);font-weight:600;color:var(--text-main);text-align:left;margin-right:15px}}.site-footer{background:#1e293b;color:#cbd5e1;padding:4rem 2rem 1rem 2rem;margin-top:4rem;font-family:'Inter',sans-serif}.site-footer-inner{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:3rem}.footer-col h4{color:#fff;font-size:1.25rem;margin-bottom:1.5rem;font-weight:600}.footer-col p{line-height:1.6;color:#94a3b8}.footer-col ul{list-style:none;padding:0;margin:0}.footer-col ul li{margin-bottom:.75rem}.footer-col ul li a{color:#94a3b8;text-decoration:none;transition:color 0.3s ease}.footer-col ul li a:hover{color:#8b5cf6}.site-footer-bottom{text-align:center;border-top:1px solid #334155;padding-top:1.5rem;color:#64748b;font-size:.9rem}@media (max-width:768px){.site-footer{padding-bottom:80px}}.footer-col-calculators ul{display:block!important}.footer-col-calculators ul li{margin-bottom:0.75rem!important}.footer-col-calculators ul li a{display:block;color:#94a3b8;text-decoration:none;font-size:.95rem;transition:color 0.3s ease,padding-left 0.3s ease}.footer-col-calculators ul li a:hover{color:#8b5cf6!important;padding-left:5px}@media (min-width:992px){.footer-row-1{grid-template-columns:repeat(4,1fr)!important}.footer-row-2{grid-template-columns:1fr 1fr!important}}@media print{body{background:#fff;color:#000;margin:0;padding:0}.site-header,.site-footer,.desktop-sidebar,.bottom-nav,.calc-input-section,.calc-tips-section,.entry-content,.results-header-actions button,.hero-section,.mission-section{display:none!important}.calculator-page-layout{display:block!important;margin:0!important;padding:0!important;max-width:100%!important}.calc-results-section{display:block!important;width:100%!important}.boq-table{width:100%;border-collapse:collapse}.boq-table th,.boq-table td{border:1px solid #ccc;padding:8px}.boq-table thead{display:table-header-group!important}.boq-table,.boq-table tbody,.boq-table tr,.boq-table td{display:table-cell!important;width:auto!important}.boq-table tr{display:table-row!important;margin-bottom:0!important;box-shadow:none!important;border:none!important}.boq-table td::before{display:none!important}.boq-table td.hide-mobile{display:table-cell!important}.stage-card{page-break-inside:avoid;box-shadow:none!important;border:1px solid #ddd;margin-bottom:2rem}}.print-brand-header{display:none}.result-terms-conditions{display:none;margin-top:2rem;padding:1.5rem;background:rgb(248 250 252 / .8);border:1px solid #e2e8f0;border-radius:12px;color:#64748b;font-size:.85rem;line-height:1.6}.result-terms-conditions h4{color:#334155;margin-bottom:.5rem;font-size:1rem}@media print{.print-brand-header{display:block;text-align:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #8b5cf6}.print-brand-header .brand-name{font-size:2rem;font-weight:800;color:#1e293b}.print-brand-header .brand-tagline{font-size:1rem;color:#64748b;margin-top:.25rem}.print-brand-header .brand-meta{font-size:.85rem;color:#94a3b8;margin-top:1rem}.result-terms-conditions{display:block;margin-top:3rem;page-break-inside:avoid;border:none;border-top:1px solid #e2e8f0;border-radius:0;padding:1.5rem 0 0 0;background:#fff0}}.calculator-container{background-color:var(--card-background);border-radius:var(--border-radius);padding:var(--spacing-lg);box-shadow:0 4px 6px -1px rgb(0 0 0 / .1),0 2px 4px -1px rgb(0 0 0 / .06);margin-bottom:var(--spacing-xl)}.calc-grid{display:grid;grid-template-columns:1fr;gap:var(--spacing-lg)}@media (min-width:1024px){.calc-grid{grid-template-columns:1fr 1fr}}.calc-header{margin-bottom:var(--spacing-lg);border-bottom:1px solid var(--border-color);padding-bottom:var(--spacing-sm)}.calc-input-section{background-color:#f8fafc;padding:var(--spacing-md);border-radius:var(--border-radius);border:1px solid var(--border-color)}.calc-results-section{background-color:#f0fdf4;padding:var(--spacing-md);border-radius:var(--border-radius);border:1px solid #bbf7d0}.result-row{display:flex;justify-content:space-between;padding:var(--spacing-sm) 0;border-bottom:1px dashed #cbd5e1}.result-row:last-child{border-bottom:none}.result-label{font-weight:500;color:var(--text-secondary)}.result-value{font-weight:700;color:var(--text-primary);font-size:1.1rem}.result-total{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:2px solid var(--success-color);font-size:1.5rem;color:var(--success-color);text-align:right;font-weight:700}.chart-container{position:relative;height:300px;width:100%;max-width:100%;overflow:hidden;margin-top:var(--spacing-lg)}.unit-toggle-wrapper{display:flex;align-items:center;justify-content:center;background-color:#f1f5f9;padding:.5rem;border-radius:999px;margin-bottom:var(--spacing-lg);width:fit-content;margin-left:auto;margin-right:auto}.unit-option{padding:.5rem 1.5rem;border-radius:999px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all 0.2s;color:var(--text-secondary)}.unit-option.active{background-color:var(--card-background);color:var(--primary-color);box-shadow:0 1px 3px rgb(0 0 0 / .1)}.stage-card{background-color:var(--card-background);border-radius:var(--border-radius);padding:var(--spacing-md);margin-bottom:var(--spacing-md);border-left:4px solid var(--primary-color);box-shadow:0 2px 4px rgb(0 0 0 / .05)}.stage-title{font-size:.85rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);margin-bottom:var(--spacing-sm);display:flex;align-items:center;gap:.5rem}.stage-title svg{width:16px;height:16px;color:var(--primary-color)}.material-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-sm);margin-top:var(--spacing-sm)}.material-item{background-color:#f8fafc;padding:var(--spacing-sm);border-radius:8px;text-align:center;border:1px solid var(--border-color)}.material-item .m-value{font-size:1.25rem;font-weight:700;color:var(--text-primary);display:block}.material-item .m-label{font-size:.75rem;color:var(--text-secondary)}.material-item .m-cost{font-size:.85rem;color:var(--success-color);margin-top:.25rem;display:block}.quality-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-bottom:1rem}@media (min-width:768px){.quality-grid{grid-template-columns:repeat(4,1fr)}}.quality-card{position:relative;cursor:pointer}.quality-card input[type="radio"]{position:absolute;opacity:0;width:0;height:0}.quality-content{border:2px solid var(--border-color);border-radius:8px;padding:1rem;text-align:center;background:#fff;transition:all 0.3s ease;display:flex;flex-direction:column;align-items:center;gap:.5rem;height:100%}.quality-content svg{color:var(--text-secondary)}.q-title{font-weight:600;color:var(--text-color)}.q-price{font-size:.85rem;color:var(--text-secondary)}.quality-card input[type="radio"]:checked+.quality-content{border-color:#8b5cf6;background-color:#faf5ff;box-shadow:0 4px 6px -1px rgb(139 92 246 / .1)}.quality-card input[type="radio"]:checked+.quality-content svg{color:#8b5cf6}.advanced-options-wrapper{background:#fff;border:1px solid var(--border-color);border-radius:8px;padding:1rem}.advanced-grid{display:none;grid-template-columns:1fr;gap:1rem;margin-top:1rem;border-top:1px solid var(--border-color);padding-top:1rem}.advanced-grid.show{display:grid}@media (min-width:768px){.advanced-grid.show{grid-template-columns:repeat(2,1fr)}}.checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.95rem}.table-responsive{overflow-x:auto}.boq-table{width:100%;border-collapse:collapse;margin-top:1rem}.boq-table th,.boq-table td{padding:.75rem;border-bottom:1px solid var(--border-color);text-align:left}.boq-table th{background-color:rgb(0 0 0 / .02);font-weight:600;color:var(--text-secondary)}.boq-table tr:last-child td{border-bottom:none}.boq-cat{font-weight:600;color:var(--text-color);display:flex;align-items:center;gap:.5rem}.boq-qty{color:var(--text-secondary);font-size:.9rem}.boq-cost{text-align:right;font-weight:600;color:var(--text-color)}@media print{body *{visibility:hidden}#construction-results,#construction-results *{visibility:visible}#construction-results{position:absolute;left:0;top:0;width:100%}.print-btn{display:none!important}}.calculator-container{background:linear-gradient(145deg,#ffffff,#f3f4f6);border:1px solid rgb(255 255 255 / .4);box-shadow:0 10px 25px -5px rgb(0 0 0 / .1),0 8px 10px -6px rgb(0 0 0 / .1)}.calc-input-section{background:rgb(255 255 255 / .7);backdrop-filter:blur(10px);border:1px solid rgb(255 255 255 / .5);box-shadow:inset 0 2px 4px rgb(255 255 255 / .3)}.btn-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6)!important;border:none;box-shadow:0 4px 15px rgb(99 102 241 / .4);transition:transform 0.2s,box-shadow 0.2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(99 102 241 / .6)}.calc-tips-section{display:flex;flex-direction:column;height:100%}.tips-card{background:linear-gradient(180deg,#1e1b4b,#312e81);border-radius:var(--border-radius);padding:var(--spacing-lg);color:#fff;height:100%;box-shadow:0 10px 25px -5px rgb(49 46 129 / .5);display:flex;flex-direction:column;justify-content:space-between}.tips-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem;color:#a5b4fc}.tips-header h3{margin:0;font-size:1.25rem;color:#fff}.tip-item{display:flex;gap:1rem;margin-bottom:1.25rem}.tip-number{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:#4f46e5;color:#fff;border-radius:50%;font-weight:700;flex-shrink:0;box-shadow:0 0 10px rgb(79 70 229 / .5)}.tip-content strong{display:block;font-size:1rem;color:#e0e7ff;margin-bottom:.25rem}.tip-content p{font-size:.85rem;color:#c7d2fe;margin:0;line-height:1.4}.tips-footer{margin-top:2rem;padding-top:1rem;border-top:1px solid rgb(255 255 255 / .1);font-size:.9rem;color:#a5b4fc;text-align:center}.pdf-export-active{background:#ffffff!important;padding:30px!important;border:none!important;box-shadow:none!important;width:800px!important;max-width:none!important;position:absolute!important;left:0!important;top:0!important;margin:0!important;transform:none!important;z-index:99999!important}.pdf-export-active .chart-container{width:500px!important;margin:0 auto!important}@media (max-width:767px){body{font-size:15px}.table-responsive{width:100%;max-width:100vw;-webkit-overflow-scrolling:touch;border-radius:8px;box-shadow:inset 0 0 0 1px var(--border-color);margin-top:1rem}.boq-table th,.boq-table td{padding:.5rem;font-size:.85rem;white-space:nowrap}.calc-results-section{max-width:100%;width:100%;box-sizing:border-box;overflow-x:hidden}.result-total{font-size:1.8rem!important;word-break:break-word;overflow-wrap:break-word;line-height:1.2}.form-group label{font-size:.9rem}.form-group input,.form-group select{padding:.8rem;font-size:1rem}.stage-card{padding:1rem;width:100%;box-sizing:border-box}.result-value{font-size:1rem;text-align:right}html,body{max-width:100vw;overflow-x:hidden}}.calc-results-section{background:rgb(255 255 255 / .7)!important;backdrop-filter:blur(10px)!important;-webkit-backdrop-filter:blur(10px)!important;border:1px solid rgb(255 255 255 / .5)!important;box-shadow:inset 0 2px 4px rgb(255 255 255 / .3)!important;border-radius:var(--border-radius)!important;padding:var(--spacing-md)!important}